Collab disconnecting a bunch of textures and materials from game objects

Hi,

I had been using Collab for a while with no issues. This time, however, it disconnected a bunch of textures and materials from the game objects they were attached to. All the files are still there, they just aren't connected. I read that this can happen if you changed file names in the folders containing the project outside of Unity. I did just do a cleanup, changing names and such, but all of it was in Unity. Regardless, I've tried Unity's Collab troubleshooting page and searched the internet, but I can't find anything that has been helpful. The only thing that I've found to try was unlinking and relinking the project with a new ID and uploading it again.

Thank you for any help!